In a recent study the risk of heart failure (HF) was over 12 times higher in elderly individuals who were Vitamin D deficient that in individuals who had an adequate Vitamin D status.
Over 130 elderly people 60 years and older who were receiving care for cardiac issues participated in this study. Vitamin D deficiency was established at below 30 ng/ml for the purposes of this study. Below 20 ng/ml was considered severely deficient. This is in contrast with the more widely recognized practice of considering Vitamin D deficiency to be below 20 ng/ml. Researchers also looked at the health ABC scale to analyze a participant’s risk of heart failure, a higher percentage score showing a higher heart failure risk.
65% of the participants were considered to be Vitamin D deficient (62% of these participants were considered to be severely deficient). Participants with a Vitamin D deficiency were over 12 times more likely to have heart failure compared with participants who did not have a Vitamin D deficiency. Vitamin D deficient men participants were over 15 times more likely to have heart failure when compared with women participants and heart failure was over 4 times more likely to occur in obese participants with a Vitamin D deficiency than participants who were not obese. Vitamin D deficient participants who also experienced hearth arrhythmias had an almost 4 times higher risk of experiencing heart failure when compared with participants who had other forms of cardiovascular disease.
Researchers concluded that “The risk of HF was present in more than half of the elderly and was strongly associated with Vitamin D deficiency”. These results are consistent with earlier studies showing the importance that adequate Vitamin D status plays in the elderly for providing both cardiovascular benefits and in supporting bone health.
The study was observational and no causal effect of Vitamin D deficiency on heart failure could be established. The size of the study was small making the need for larger more randomized controlled studies important in the future to further strengthen these study results.
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